Solution: Numerical and Graphical Analysis Forces with magnitudes of 180 newtons and 275

Chapter 11, Problem 76

(choose chapter or problem)

Forces with magnitudes of 180 newtons and 275 newtons act on a hook (see figure). The angle between the two forces is \(\theta\) degrees.

(a) When \(\theta=30^{\circ}\), find the direction and magnitude of the resultant force.

(b) Write the magnitude M and direction \(\alpha\) of the resultant force as functions of \(\theta\), where \(0^{\circ} \leq \theta \leq 180^{\circ}\).

(c) Use a graphing utility to complete the table.

(d) Use a graphing utility to graph the two functions M and \(\alpha\).

(e) Explain why one of the functions decreases for increasing values of \(\theta\), whereas the other does not.

Text Transcription:

theta

theta=30^circ

alpha

0^circ leq theta leq 180^circ

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